I can hear from here "Oh no, not again this question!" ;) But this time it is not a question it is a feature suggestion. What if we replace in RcppArmadilloWrap.h:64: template <typename T> SEXP wrap( const arma::Col<T>& data ){ return RcppArmadillo::arma_wrap( data, Dimension( data.n_elem, 1) ) ; } by something like: template <typename T> SEXP wrap( const arma::Col<T>& data ){ #ifdef RETURN_COLVEC_AS_VECTOR return RcppArmadillo::arma_wrap( data ) ; #else return RcppArmadillo::arma_wrap( data, Dimension( data.n_elem, 1) ) ; #endif }
In this way, a legacy code relying on one column matrix is not impacted, while other users can define a macro RETURN_COLVEC_AS_VECTOR before "#include <Rcpp>" and enjoy a more intuitive behavior. Was it already proposed and rejected? Best, Serguei. _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel